Cleaner drum for cotton-gin feeders



' Jan. 17, 1928.

1,656,432 T. ELLIOTT CLEANER DRUM FOR GO'TTON GIN FEEDERS Filed Feb. 19, 1927 Thomaszmott auomu Patented Jan. 17, 1928.

UNITEDSTATES PATENT OFFICE.

THOMAS ELLIOTT, O]? BIRMINGHAM, ALABAMA, ASSIGNOR Tb CONTINENTAL GIN GOMPANY, A CORPORATION OF DELAWARE.

GLIJANER DRUM FOR COTTON-GIN ICEED'ERS.

Application filed February 19, 1027. Serial No. leases.

This invention has general reference to cleaner drums for cotton-gin feeders, and relates more particularly to certain new and useful improvements in the deslgn, con struction, and assembling and co-action of the parts, of such drums.

A primary object of the present invention is to provide a metal cleaner drum adapted for use in cotton-gin feeders, in which the shell of the drum, by which the spikes are carried, is not rigidly secured to the supporting discs or heads, but is turnable thereb A further object is to mountthe shell up on the drum heads insuch a way that the heads are freely movable away from the drum axially thereof, while rotation of the heads in either direction causes the shell to be secured tightly thereon by a wedging action.

And a still further object is so to design and arrange the drum heads, and the means for connecting the shell therewith, that the heads of the last circumferential row of F spikes at each end of the shell may serve as part of said connecting means.

The means by which the foregoing and other objects are accomplished by my invention, and the manner of their accomplishment, readily will be understood from the following description on reference to the accompanying drawings, which depict a preferred embodiment of the invention, and in which Fig. 1 is a. broken view of my improved cleaner drum, partly in side elevation, and partly in sectional side elevation, the section being taken substantially on the center line of the drum.

Fig. 2 is a section taken substantially on the line IIII of Fig. 1.

As shown in the drawings, in which like parts are identified by corresponding reference characters throughout the several views, the shell 5 of the drum is a c linder of sheet metal, Such as iron or stee plate, which preferably is made in one piece, and seamed by welding. The spikes 6are staggered, and are arranged in parallel rows extending longitudinally and circumferentially of the shell, each spike being formed by a rivet, secured in a rivet-hole initially punched in the shell, and having an outer tapered shoulder 7 and an inner rounded or button head 8; Each of the heads 9 of the drum is an inwardly-dished casting, having an annular flange 10, projecting outwardly from, a rim portion 11, which is symmetrically corrugated or fluted longi tudinally of the drum head, each of the corrugations or flutes comprising a depressed P01131011 12, from the respective sides of which sharply-inclined plane portions .13 and 14 extend outwardly to the similar peaks or high points 15; said rimportion merging into a concave-convex central panel 16, and there being at the center of said panel a split hub 17, adapted to be secured upon a shaft 18 by means of bolts 19 and nuts 20. y y i I The shell 5- is held by the flanges 10 against longitudina-l displacement, since the drum heads 9 are fixedly secured on the driving shaft 18, but otherwise the shell is loose- 1y mounted on said heads. rotation of the driving shaft 18 and the drum heads carried thereby, in either direction, the heads of the rivet-spikes in the rows nearest the respective ends of the shell engage the inclined surfaces of the portions 13 or 14 (as the case may be) of the rim 11, and the shell is gripped securely on. the drum heads by the wedging act-ion of the heads However, upon of said rivet-spikes upon the ones of said inclined surfaces that are engaged by them. Since there is no abrasive or other wear upon the drum heads, and they are little affected by rust, they are adapted to last almost indefinitely, and during any ordinary periodof use of one of the drums only the shell ever has to be replaced. When a shell, or the spikes thereon, become worn, rusted or distorted sufficiently to require replacement, it is only necessary to loosen the nuts 19 on the bolts 20 of one of the split hubs 17, sufliciently to permit the drum head to be moved on the shaft 18 away from the shell 5, whereupon said shell is free for removal, and a Having now fully disclosed the invention, what I claim as new, and seek to secure by Letters Patent, is

1. A cleaner drum for cotton-gin feeders, comprising av cylinder having outwardly-projecting spikes thereon, a drum head at each end of said cylinder having a shouldered surface with which loosely supports said cylinder, and means on said cylinder and adapted to co-act with the shouldered surface of said drum heads whereby said cylinder is rotatable by rotation of said drum heads.

2. A cleaner drum conforming to claim 1, in combination with means carried by the drum heads, adapted to prevent axial movement of the cylinder.

3. A cleaner drum for cotton-gin feeders, comprising a sheet-metal cylinder having outwa-rdly-projecting spikes thereon with the heads of a plurality thereof extending beyond the inner surface of the cylinder, and a drum head at each end of said cylinder having a corrugated surface with which said cylinder is loosely engaged, a plurality of said spike heads being in position to engage said corrugated surfaces, whereby said cylinder is rotatable by rotation of said drum heads.

4. A cleaner drum conforming to claim 3, in combination with a flange on each of said drum heads, adapted to prevent axial movement of said cylinder.

5. A cleaner drum for cotton gin feeders, comprising a spike cylinder, drum heads on which said 0 linder is loosely supported at each end, an co-acting elements on the cylinder and drum heads adapted to engage responsive to rotation of the drum heads and cause the cylinder to rotate therewith.

6. A cleaner drum according to claim 5, in which the co-acting elements act with a wedging effect to interlock the drum and drum heads.

7. A cleaner drum according to claim 5, in which the co-acting elements are in the form of double wedges adapted to interlock the cylinder for a drive in either direction.

In testimony whereof I afiix my signature.

THOMAS ELLIOTT. 

